Add 70/30 and 28/42
1st number: 2 10/30, 2nd number: 28/42
70/30 + 28/42 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
70/30 = 70 × 7/30 × 7 = 490/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
28/42 = 28 × 5/42 × 5 = 140/210 - Add the two like fractions:
490/210 + 140/210 = 490 + 140/210 = 630/210 - 630/210 simplified gives 3/1
- So, 70/30 + 28/42 = 3/1
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